How can i index values in the onTick method ?

sodastodas

how can i Index the calculated values of variables or doubles in the OnTick method of cBots ?

in this example i have to manually calculate each value or else this error will pop up : 'index' is a type which is not valid in the given context

`            // Calculate BBP value
            double hullo = Hullopen.Result.LastValue;
            double hullh = HullHigh.Result.LastValue;
            double hulll = HullLow.Result.LastValue;
            double bullp = hullh - hullo;
            double bearp = hulll - hullo;
            double BBP = bullp + bearp;

            // Get BBP value of the previous candle
            double previousHullo = Hullopen.Result.Last(1);
            double previousHullh = HullHigh.Result.Last(1);
            double previousHulll = HullLow.Result.Last(1);
            double previousBullp = previousHullh - previousHullo;
            double previousBearp = previousHulll - previousHullo;
            double previousBBP = previousBullp + previousBearp;`

while in the regular indicator , i can easily index values to call values of previous indicator candles

ACCBBPhisto[index] = (BBPhisto[index] - BBPhisto[index-1]) + BBPhisto[index];

algoman

Equivalent Logic in a cBot’s OnTick():

Assuming BBPhisto is an IndicatorDataSeries from an indicator (like your own Bollinger Band histogram), you access historical values like this:

double current = bb.BBPhisto.Last(0);     // same as bb.BBPhisto[Bars.Count - 1]
double previous = bb.BBPhisto.Last(1);    // one candle back

double accBBPhisto = (current - previous) + current;